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| Patents for R. F. Van Boskerck | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 299,100 | May 27, 1884 | J. Barnes | Corkscrew | |
 | 341,080 | May 04, 1886 | E. Weissenborn | Calipers or Dividers | |
 | 341,081 | May 04, 1886 | E. Weissenborn | Compass Attachment for Pencils | |